If figuring out why your banned accounts are getting banned isn’t fruitful, you could take a look at the accounts that haven’t been banned yet and see if there

If figuring out why your banned accounts are getting banned isn’t fruitful, you could take a look at the accounts that haven’t been banned yet and see if there is anything suspicious on them. Spam, weird login sessions, unknown IPs; asking site owners could work as well (eg you could ask hn@ycombinator whether there is anything weird about your account).